Latest Updates
Nov
28
[IP Voice Services] Maintenance window 2nd & 3rd December 2016
Posted by Adrian Williams on 28 November 2016 08:59 AM
Please be advised of the following maintenance window scheduled on Friday, 2nd December and Saturday, 3rd December 2016to IP Voice Services.

Date: Friday 2nd December 2016
Start time: 2000 GMT
Date: Saturday 3rd December 2016
End time: 0200 GMT

Purpose:

The Engineering Team will be performing works to add RAM to one of the servers in a Call Processing clusters and remove some legacy equipment from the primary datacentre.


Services Affected:

IP Voice Services


Impact:

In regards to the Call Processing cluster, these works will impact the primary server in the cluster, so call processing will be redirected to the secondary. The works relating to this will not begin before 2200.

Due to the way that users are distributed within the platform these works will impact about 20% of users.

Due to the nature of the works there will be a brief period of no more than 15 minutes, where users may experience excessive post dial delay or the brief inability to make or receive calls. The Engineering team will be working to make sure this is kept to a minimum and carried out at a time which impacts as few users as possible.

Regarding the equipment removal, all equipment is no longer in active use; services are simply at risk due to the fact that Engineers will be working in racks with active equipment.

Our Engineering Team will be closely monitoring all systems and services, as well as the above, to ensure any unexpected disruption is as brief as possible if experienced.

Comtec is tracking this issue under ticket KZP-994-83945.

Regards,
Adrian Williams
2nd Line Voice and Data Support
Comtec

www.comtec.com

For urgent operational issues please always contact noc at comtec.com or 0845 899 1423 and not any named individual.

Registered Office: Comtec House, Albert Road North, Reigate, Surrey RH2 9EL

CONFIDENTIALITY NOTICE
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Adrian Williams
2nd Line Voice and Data Engineer

Comtec

E: Adrian.Williams at comtec.com
T: 01737 228123| M: | F: 01737 228101
W: www.comtec.com

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Registered Office: Comtec House, Albert Road North, Reigate, Surrey RH2 9EL

CONFIDENTIALITY NOTICE
This email transmission (and/or the documents accompanying it) may contain confidential information belonging to the sender. The information is intended for the use of the individual or entity named. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this transmission in error, please immediately notify the sender by telephone to arrange for the return of the documents. The contents of an attachment to this email may contain software viruses that could damage your own computer system. Whilst the sender has taken every reasonable precaution to minimise this risk, we cannot accept liability for any damage that you may sustain as a result of software viruses. You should carry out your own virus checks before opening any attachments to this email.
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Nov
19
[Core Network] Maintenance window 11th December 2016
Posted by David Croft on 19 November 2016 11:44 AM
Please be advised of the following maintenance window scheduled at our
Telecity HEX 6-7 (LNPOP02) site:

Start date: Sunday, 11th December 2016
Start time: 14:00 GMT (UTC+0000)
End time: 22:00 GMT (UTC+0000)

Purpose:

We will be installing additional equipment to increase capacity at our
Telecity HEX 6-7 (LNPOP02) site.

Services affected:

All services hosted in or single-homed out of Telecity HEX 6-7
(LNPOP02) including Cloud Ethernet circuits single-homed to this
location.
Services at other sites will not be affected.

Impact:

MEDIUM/LOW.

Single-homed Cloud Ethernet customers will suffer a brief outage
(maximum 10 minutes) during this window while their circuits are
migrated.

For other services, this is an "at-risk" notification only and no
impact to service is expected.

Our engineering team will be monitoring all services and circuits
closely and if any outage is experienced, it is expected to be very
brief.

Comtec NOC is tracking this issue under ticket [#SAH-440-61980].

Regards,

David Croft
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Nov
6
[Core Network] Maintenance window 6th November 2016 - Update 2
Posted by David Croft on 06 November 2016 07:20 PM
This work has been completed.

Regards

David
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Nov
6
[Core Network] Maintenance window 6th November 2016 - Update 1
Posted by David Croft on 06 November 2016 02:06 PM
Please be advised that the maintenance window below is now beginning.

Regards

David
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Nov
3
[VoIP UK] Service Alert 2nd November 2016 - Update 2
Posted by David Croft on 03 November 2016 07:58 PM
This is an incident notification regarding VoIP UK voice services.

Date: Wednesday, 2nd November 2016
Start time: 15:14 GMT (UTC+0000)
End time: 15:47 GMT (UTC+0000)

Services affected:

IP voice services using VoIP UK.
BT services were unaffected.

Report:

Comtec NOC observed a drop in all registrations and an inability to
register with VoIP UK.

We have received the root cause analysis and remedial action from our
vendor as follows:

"We have experienced a service affecting problem as documented above.
Our network operations team tracked and repaired. More than one
customer region was affected and as such our customer support lines
were very busy during and shortly after the time window above.

Symptoms
Customers may have experienced problems dialling out and may not have
been able to receive calls. Most customer systems self-repaired,
however it may have been necessary to restart some customer based
equipment to bring back into service.

Technical
A customer programmatic event causing a system loop prevented normal
fast database access. As a result outbound calls failed to be
authorised in a timely manner and inbound calls may have been blocked
for some customers. The immediate cause was identified, removed and
remedial action was taken to bring stressed network components back in
to normal operation. Further to this a development case has been
raised to prevent a re-occurrence."


Comtec NOC was tracking this issue under ticket [#DCX-370-12304].

This is the final update.

Regards,

David Croft
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